package com.feilong.lib.digester3.binder;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import static java.lang.String.format;

import com.feilong.lib.digester3.SetPropertyRule;

/**
 * Builder chained when invoking {@link LinkedRuleBuilder#setProperty(String)}.
 *
 * @since 3.0
 */
public final class SetPropertyBuilder extends AbstractBackToLinkedRuleBuilder<SetPropertyRule>{

    private final String attributePropertyName;

    private String       valueAttributeName;

    SetPropertyBuilder(String keyPattern, String namespaceURI, RulesBinder mainBinder, LinkedRuleBuilder mainBuilder,
                    String attributePropertyName){
        super(keyPattern, namespaceURI, mainBinder, mainBuilder);
        this.attributePropertyName = attributePropertyName;
    }

    /**
     * Set the name of the attribute that will contain the value to which the property should be set.
     *
     * @param valueAttributeName
     *            Name of the attribute that will contain the value to which the property should be set.
     * @return this builder instance
     */
    public SetPropertyBuilder extractingValueFromAttribute(String valueAttributeName){
        if (attributePropertyName == null || attributePropertyName.length() == 0){
            reportError(
                            format("setProperty(\"%s\").extractingValueFromAttribute(String)}", attributePropertyName),
                            "empty 'valueAttributeName' not allowed");
        }

        this.valueAttributeName = valueAttributeName;
        return this;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected SetPropertyRule createRule(){
        return new SetPropertyRule(attributePropertyName, valueAttributeName);
    }

}
